Criterion CORE 18″ Barrel
$313.99
When maximizing velocity and long-range performance is the mission, the Criterion CORE 18″ Rifle-Length Barrel is the definitive answer. Engineered as the ultimate heart for your Special Purpose Rifle (SPR) or Designated Marksman Rifle (DMR) build, this barrel combines the revolutionary balance of the CORE profile with the exceptionally smooth recoil impulse of a rifle-length gas system. Stretch the effective range of your AR-15 and make every shot count.
Criterion CORE 18″ Barrel
An 18″ barrel offers a significant velocity advantage, and the CORE profile ensures this length remains perfectly balanced and maneuverable. By intelligently tapering the barrel and shifting mass to the rear, we’ve created a profile that feels lighter and handles faster than traditional heavy barrels, even when equipped with large optics, bipods, and suppressors.
- Optimized for Precision Setups: The rearward center of gravity provides a stable, balanced platform that is easy to manage from a bipod or barricade, reducing shooter fatigue.
- Superior Heat Management: The increased mass around the chamber absorbs heat more effectively during firing strings, leading to greater consistency and minimal point-of-impact shift.
- Nimble Handling: Despite its length, the CORE profile keeps the front end light, allowing for faster transitions between distant targets.
Key Features
Every feature of the Criterion CORE barrel is selected to deliver match-grade accuracy and unwavering reliability.
- Ultimate Rifle-Length Gas System: Experience the softest, smoothest recoil impulse possible in the AR-15 platform. The long rifle-length gas system dramatically reduces felt recoil and component wear, allowing you to stay in the scope, spot your own impacts, and deliver rapid, precise follow-up shots.
- .223 Wylde Match Chamber: The best of all worlds. This chamber is precision-cut to provide match-grade accuracy with a wide variety of ammunition, while safely and reliably firing both .223 Remington and 5.56 NATO rounds.
- Legendary Chrome Lining: Our industry-leading chrome lining process delivers unmatched durability, corrosion resistance, and an exceptionally long barrel life, all without compromising the barrel’s inherent precision.
- Hand-Lapped for a Perfect Bore: Every barrel is honed and hand-lapped to a mirror finish. This critical, labor-intensive process ensures bore uniformity, which is crucial for achieving sub-MOA accuracy and simplifies cleaning.
Technical Specifications
| Specification | Detail |
| Length | 18 Inches |
| Chamber | .223 Wylde |
| Profile | CORE Series (Continuous Taper) |
| Gas System | Rifle-Length |
| Gas Block Journal | 0.625″ |
| Twist Rate | 1:8 RH |
| Material | 4150 CrMoV (Chrome Moly Vanadium) |
| Lining | Chrome Lined |
| Finish | Manganese Phosphate |
| Muzzle Threads | 1/2×28 TPI |
| Feed Ramps | M4 |
| Weight | 1.90 lbs (30.4 oz) |
Note: With a length of 18 inches, this barrel is fully compliant for all standard, non-NFA rifle builds.
Frequently Asked Questions (FAQ)
Q: Is this barrel a good choice for an SPR or DMR build?
A: It is the perfect choice. The 18″ length maximizes muzzle velocity from the .223/5.56 cartridge, the rifle-length gas system provides the smooth operation needed for precision, and the .223 Wylde chamber ensures top-tier accuracy.
Q: What is the benefit of a rifle-length gas system on an 18″ barrel?
A: The rifle-length gas system is the longest and softest-shooting option for the AR-15. It results in a very gentle recoil impulse, which helps the shooter stay on target to see their impacts and make fast, accurate follow-up shots. It also reduces stress and wear on the bolt carrier group and buffer system.
Q: What kind of accuracy can I expect from this barrel?
A: While results vary based on ammunition, assembly, and shooter skill, Criterion barrels are renowned for their quality and are capable of producing sub-MOA (less than 1 inch at 100 yards) groups with match-grade ammunition.
Q: What gas block do I need for this 18″ barrel?
A: This barrel has a 0.625″ gas block journal and requires a gas block of the same size, along with a rifle-length gas tube.
| LENGTH | 18 |
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